双线圈装用连续的双圈铁丝绕穿过打在书本订口的方孔而成的一种活页装。
Wire-o binding a method of loose-leaf binding in which a continuous double loop of wire runs through punched slots along the binding side of a booklet.
该机可进行双线、三线多线并绕或扁铜线绕制，使电压互感器二次线圈采用机械绕制的问题得到彻底解决。
The machine can perform two-wire, three-wire and multi-wire parallel winding or flat copper wire winding to completely resolve the mechanical winding of voltage transformer secondary coils.
应用推荐